158 RNFP OAL

[Desert Dweller]

Greetings to all,
never figured my first post would be a reloading question, I am going to start reloading for 38 special cas loads and can not find any reference to recommended OAL for a 158 RNFP bullet, I am using Clays and Hodgon's site does not list OALs for certain bullets with their powders.

Anyone here using clays and 158 RNFPs? what OAL works best for you?
the main pistols these will be used in are 4-1/2 inch bounty hunters if that info helps
Also if anyone has a link to more info it would be appreciated too.

Thanks in advance, this site has been a wealth of information and you all have helped a lot.